./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/byte_add-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/byte_add-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57155ec4d1c294d255486bcf60492b490ef9efa5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:29:14,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:29:14,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:29:14,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:29:14,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:29:14,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:29:14,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:29:14,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:29:14,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:29:14,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:29:14,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:29:14,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:29:14,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:29:14,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:29:14,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:29:14,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:29:14,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:29:14,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:29:14,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:29:14,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:29:14,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:29:14,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:29:14,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:29:14,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:29:14,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:29:14,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:29:14,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:29:14,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:29:14,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:29:14,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:29:14,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:29:14,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:29:14,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:29:14,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:29:14,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:29:14,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:29:14,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:29:14,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:29:14,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:29:14,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:29:14,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:29:14,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-20 06:29:14,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:29:14,866 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:29:14,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:29:14,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:29:14,868 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:29:14,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:29:14,868 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:29:14,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:29:14,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:29:14,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:29:14,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:29:14,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:29:14,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:29:14,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:29:14,870 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:29:14,870 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:29:14,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:29:14,870 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:29:14,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:29:14,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:29:14,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:29:14,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:29:14,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:29:14,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:29:14,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:29:14,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:29:14,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:29:14,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:29:14,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:29:14,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:29:14,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:29:14,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57155ec4d1c294d255486bcf60492b490ef9efa5 [2020-10-20 06:29:15,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:29:15,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:29:15,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:29:15,100 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:29:15,100 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:29:15,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/byte_add-2.i [2020-10-20 06:29:15,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3fe07c29/5622bfb3d40d469e9fd7c0f7e72c0620/FLAGb4855ffed [2020-10-20 06:29:15,605 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:29:15,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/byte_add-2.i [2020-10-20 06:29:15,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3fe07c29/5622bfb3d40d469e9fd7c0f7e72c0620/FLAGb4855ffed [2020-10-20 06:29:15,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3fe07c29/5622bfb3d40d469e9fd7c0f7e72c0620 [2020-10-20 06:29:15,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:29:15,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:29:15,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:15,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:29:15,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:29:15,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:15" (1/1) ... [2020-10-20 06:29:15,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ddef2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:15, skipping insertion in model container [2020-10-20 06:29:15,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:29:15" (1/1) ... [2020-10-20 06:29:15,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:29:16,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:29:16,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:16,440 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:29:16,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:29:16,496 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:29:16,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16 WrapperNode [2020-10-20 06:29:16,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:29:16,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:16,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:29:16,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:29:16,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:29:16,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:29:16,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:29:16,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:29:16,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... [2020-10-20 06:29:16,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:29:16,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:29:16,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:29:16,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:29:16,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:29:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:29:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:29:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:29:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:29:17,142 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:29:17,143 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-20 06:29:17,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:17 BoogieIcfgContainer [2020-10-20 06:29:17,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:29:17,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:29:17,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:29:17,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:29:17,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:29:15" (1/3) ... [2020-10-20 06:29:17,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2352c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:17, skipping insertion in model container [2020-10-20 06:29:17,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:29:16" (2/3) ... [2020-10-20 06:29:17,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2352c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:29:17, skipping insertion in model container [2020-10-20 06:29:17,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:17" (3/3) ... [2020-10-20 06:29:17,157 INFO L111 eAbstractionObserver]: Analyzing ICFG byte_add-2.i [2020-10-20 06:29:17,170 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:29:17,179 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2020-10-20 06:29:17,194 INFO L253 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2020-10-20 06:29:17,218 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:29:17,218 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:29:17,218 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:29:17,218 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:29:17,219 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:29:17,219 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:29:17,219 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:29:17,219 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:29:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-20 06:29:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:29:17,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:17,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:29:17,254 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:17,259 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 06:29:17,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:17,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33604490] [2020-10-20 06:29:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:17,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33604490] [2020-10-20 06:29:17,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:17,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:29:17,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284394142] [2020-10-20 06:29:17,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 06:29:17,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:17,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 06:29:17,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:29:17,452 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-10-20 06:29:17,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:17,495 INFO L93 Difference]: Finished difference Result 138 states and 182 transitions. [2020-10-20 06:29:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 06:29:17,497 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-20 06:29:17,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:17,516 INFO L225 Difference]: With dead ends: 138 [2020-10-20 06:29:17,516 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 06:29:17,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:29:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 06:29:17,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-20 06:29:17,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 06:29:17,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-20 06:29:17,564 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 4 [2020-10-20 06:29:17,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:17,564 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-20 06:29:17,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 06:29:17,565 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-20 06:29:17,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 06:29:17,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:17,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:17,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:29:17,567 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:17,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:17,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1944470950, now seen corresponding path program 1 times [2020-10-20 06:29:17,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:17,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135377223] [2020-10-20 06:29:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:17,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135377223] [2020-10-20 06:29:17,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:17,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:29:17,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501234220] [2020-10-20 06:29:17,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:29:17,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:17,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:29:17,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:17,670 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand 3 states. [2020-10-20 06:29:17,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:17,866 INFO L93 Difference]: Finished difference Result 145 states and 212 transitions. [2020-10-20 06:29:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:29:17,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-20 06:29:17,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:17,869 INFO L225 Difference]: With dead ends: 145 [2020-10-20 06:29:17,869 INFO L226 Difference]: Without dead ends: 98 [2020-10-20 06:29:17,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:17,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-20 06:29:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-10-20 06:29:17,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-20 06:29:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2020-10-20 06:29:17,882 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 13 [2020-10-20 06:29:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:17,882 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2020-10-20 06:29:17,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:29:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2020-10-20 06:29:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:29:17,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:17,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:17,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:29:17,885 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:17,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:17,886 INFO L82 PathProgramCache]: Analyzing trace with hash 565405448, now seen corresponding path program 1 times [2020-10-20 06:29:17,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:17,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130015658] [2020-10-20 06:29:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:17,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:29:17,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130015658] [2020-10-20 06:29:17,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:17,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:29:17,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673207863] [2020-10-20 06:29:17,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:29:17,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:18,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:29:18,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:29:18,000 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand 4 states. [2020-10-20 06:29:18,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:18,252 INFO L93 Difference]: Finished difference Result 221 states and 296 transitions. [2020-10-20 06:29:18,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:29:18,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-20 06:29:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:18,256 INFO L225 Difference]: With dead ends: 221 [2020-10-20 06:29:18,256 INFO L226 Difference]: Without dead ends: 164 [2020-10-20 06:29:18,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:29:18,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-20 06:29:18,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 104. [2020-10-20 06:29:18,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-20 06:29:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2020-10-20 06:29:18,269 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 20 [2020-10-20 06:29:18,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:18,269 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2020-10-20 06:29:18,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:29:18,270 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2020-10-20 06:29:18,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:29:18,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:18,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:18,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:29:18,272 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:18,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:18,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1055427225, now seen corresponding path program 1 times [2020-10-20 06:29:18,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:18,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614541682] [2020-10-20 06:29:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:29:18,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614541682] [2020-10-20 06:29:18,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:18,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:29:18,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062440649] [2020-10-20 06:29:18,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:29:18,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:18,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:29:18,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:29:18,457 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand 4 states. [2020-10-20 06:29:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:18,667 INFO L93 Difference]: Finished difference Result 259 states and 340 transitions. [2020-10-20 06:29:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:29:18,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-20 06:29:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:18,669 INFO L225 Difference]: With dead ends: 259 [2020-10-20 06:29:18,670 INFO L226 Difference]: Without dead ends: 194 [2020-10-20 06:29:18,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:29:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-20 06:29:18,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 120. [2020-10-20 06:29:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 06:29:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2020-10-20 06:29:18,681 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 23 [2020-10-20 06:29:18,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:18,682 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2020-10-20 06:29:18,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:29:18,682 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2020-10-20 06:29:18,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:29:18,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:18,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:18,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:29:18,685 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:18,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:18,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2113419709, now seen corresponding path program 1 times [2020-10-20 06:29:18,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:18,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596150021] [2020-10-20 06:29:18,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:18,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596150021] [2020-10-20 06:29:18,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988952639] [2020-10-20 06:29:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:18,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:29:18,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:18,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:29:18,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-10-20 06:29:18,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105881655] [2020-10-20 06:29:18,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:29:18,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:18,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:29:18,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:18,987 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand 4 states. [2020-10-20 06:29:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:19,234 INFO L93 Difference]: Finished difference Result 216 states and 307 transitions. [2020-10-20 06:29:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:29:19,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-20 06:29:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:19,236 INFO L225 Difference]: With dead ends: 216 [2020-10-20 06:29:19,236 INFO L226 Difference]: Without dead ends: 169 [2020-10-20 06:29:19,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-20 06:29:19,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 145. [2020-10-20 06:29:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-20 06:29:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 183 transitions. [2020-10-20 06:29:19,246 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 183 transitions. Word has length 26 [2020-10-20 06:29:19,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:19,246 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 183 transitions. [2020-10-20 06:29:19,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:29:19,247 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 183 transitions. [2020-10-20 06:29:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 06:29:19,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:19,248 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:19,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:19,464 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:19,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1301565703, now seen corresponding path program 1 times [2020-10-20 06:29:19,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:19,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467579404] [2020-10-20 06:29:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:19,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467579404] [2020-10-20 06:29:19,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154791169] [2020-10-20 06:29:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:19,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:29:19,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 06:29:19,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:29:19,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2020-10-20 06:29:19,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840826404] [2020-10-20 06:29:19,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:29:19,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:19,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:29:19,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:19,825 INFO L87 Difference]: Start difference. First operand 145 states and 183 transitions. Second operand 4 states. [2020-10-20 06:29:20,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:20,166 INFO L93 Difference]: Finished difference Result 290 states and 391 transitions. [2020-10-20 06:29:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:29:20,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-20 06:29:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:20,168 INFO L225 Difference]: With dead ends: 290 [2020-10-20 06:29:20,168 INFO L226 Difference]: Without dead ends: 198 [2020-10-20 06:29:20,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-20 06:29:20,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 170. [2020-10-20 06:29:20,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-20 06:29:20,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2020-10-20 06:29:20,191 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 33 [2020-10-20 06:29:20,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:20,191 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2020-10-20 06:29:20,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:29:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2020-10-20 06:29:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-20 06:29:20,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:20,197 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:20,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:20,412 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:20,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:20,413 INFO L82 PathProgramCache]: Analyzing trace with hash -665492217, now seen corresponding path program 1 times [2020-10-20 06:29:20,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:20,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138768780] [2020-10-20 06:29:20,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:20,556 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:29:20,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138768780] [2020-10-20 06:29:20,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214465670] [2020-10-20 06:29:20,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:20,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:29:20,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:20,671 INFO L721 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-10-20 06:29:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-20 06:29:20,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:29:20,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2020-10-20 06:29:20,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896111432] [2020-10-20 06:29:20,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:29:20,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:20,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:29:20,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:20,847 INFO L87 Difference]: Start difference. First operand 170 states and 212 transitions. Second operand 4 states. [2020-10-20 06:29:21,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:21,244 INFO L93 Difference]: Finished difference Result 340 states and 447 transitions. [2020-10-20 06:29:21,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:29:21,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-20 06:29:21,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:21,247 INFO L225 Difference]: With dead ends: 340 [2020-10-20 06:29:21,247 INFO L226 Difference]: Without dead ends: 223 [2020-10-20 06:29:21,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-20 06:29:21,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 195. [2020-10-20 06:29:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-20 06:29:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2020-10-20 06:29:21,255 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 40 [2020-10-20 06:29:21,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:21,256 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2020-10-20 06:29:21,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:29:21,256 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2020-10-20 06:29:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-20 06:29:21,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:21,258 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:21,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:21,472 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:21,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:21,472 INFO L82 PathProgramCache]: Analyzing trace with hash 973067587, now seen corresponding path program 1 times [2020-10-20 06:29:21,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:21,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469672578] [2020-10-20 06:29:21,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-20 06:29:21,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469672578] [2020-10-20 06:29:21,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:21,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:29:21,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306160628] [2020-10-20 06:29:21,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:29:21,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:21,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:29:21,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:21,528 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand 3 states. [2020-10-20 06:29:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:21,538 INFO L93 Difference]: Finished difference Result 232 states and 282 transitions. [2020-10-20 06:29:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:29:21,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-10-20 06:29:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:21,540 INFO L225 Difference]: With dead ends: 232 [2020-10-20 06:29:21,540 INFO L226 Difference]: Without dead ends: 169 [2020-10-20 06:29:21,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:29:21,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-20 06:29:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-10-20 06:29:21,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-20 06:29:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2020-10-20 06:29:21,546 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 47 [2020-10-20 06:29:21,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:21,547 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2020-10-20 06:29:21,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:29:21,547 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2020-10-20 06:29:21,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-20 06:29:21,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:21,548 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:21,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:29:21,549 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:21,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:21,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1501188431, now seen corresponding path program 1 times [2020-10-20 06:29:21,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:21,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425613999] [2020-10-20 06:29:21,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:21,613 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-10-20 06:29:21,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425613999] [2020-10-20 06:29:21,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:21,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:29:21,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979398236] [2020-10-20 06:29:21,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:29:21,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:21,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:29:21,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:29:21,616 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand 5 states. [2020-10-20 06:29:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:21,835 INFO L93 Difference]: Finished difference Result 465 states and 573 transitions. [2020-10-20 06:29:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:29:21,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-20 06:29:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:21,838 INFO L225 Difference]: With dead ends: 465 [2020-10-20 06:29:21,838 INFO L226 Difference]: Without dead ends: 347 [2020-10-20 06:29:21,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:21,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-20 06:29:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 209. [2020-10-20 06:29:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-20 06:29:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 256 transitions. [2020-10-20 06:29:21,847 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 256 transitions. Word has length 59 [2020-10-20 06:29:21,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:21,847 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 256 transitions. [2020-10-20 06:29:21,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:29:21,848 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 256 transitions. [2020-10-20 06:29:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-20 06:29:21,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:21,849 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:21,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 06:29:21,849 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:21,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:21,850 INFO L82 PathProgramCache]: Analyzing trace with hash -451056364, now seen corresponding path program 1 times [2020-10-20 06:29:21,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:21,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486934737] [2020-10-20 06:29:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-20 06:29:21,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486934737] [2020-10-20 06:29:21,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:21,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:29:21,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125934891] [2020-10-20 06:29:21,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:29:21,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:21,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:29:21,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:29:21,901 INFO L87 Difference]: Start difference. First operand 209 states and 256 transitions. Second operand 4 states. [2020-10-20 06:29:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:21,972 INFO L93 Difference]: Finished difference Result 465 states and 569 transitions. [2020-10-20 06:29:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:29:21,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-10-20 06:29:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:21,975 INFO L225 Difference]: With dead ends: 465 [2020-10-20 06:29:21,975 INFO L226 Difference]: Without dead ends: 307 [2020-10-20 06:29:21,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:29:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-20 06:29:21,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 225. [2020-10-20 06:29:21,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-20 06:29:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 283 transitions. [2020-10-20 06:29:21,981 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 283 transitions. Word has length 62 [2020-10-20 06:29:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:21,981 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 283 transitions. [2020-10-20 06:29:21,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:29:21,982 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 283 transitions. [2020-10-20 06:29:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-20 06:29:21,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:21,983 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:21,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 06:29:21,983 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:21,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1517528546, now seen corresponding path program 1 times [2020-10-20 06:29:21,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:21,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212995031] [2020-10-20 06:29:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 06:29:22,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212995031] [2020-10-20 06:29:22,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:22,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:29:22,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665170655] [2020-10-20 06:29:22,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:29:22,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:22,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:29:22,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:22,071 INFO L87 Difference]: Start difference. First operand 225 states and 283 transitions. Second operand 6 states. [2020-10-20 06:29:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:22,397 INFO L93 Difference]: Finished difference Result 619 states and 780 transitions. [2020-10-20 06:29:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:29:22,398 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-20 06:29:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:22,400 INFO L225 Difference]: With dead ends: 619 [2020-10-20 06:29:22,400 INFO L226 Difference]: Without dead ends: 440 [2020-10-20 06:29:22,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:29:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-10-20 06:29:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 361. [2020-10-20 06:29:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-20 06:29:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 453 transitions. [2020-10-20 06:29:22,414 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 453 transitions. Word has length 68 [2020-10-20 06:29:22,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:22,414 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 453 transitions. [2020-10-20 06:29:22,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:29:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 453 transitions. [2020-10-20 06:29:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-20 06:29:22,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:22,415 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:22,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 06:29:22,416 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:22,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:22,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2020673026, now seen corresponding path program 1 times [2020-10-20 06:29:22,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:22,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679574201] [2020-10-20 06:29:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-20 06:29:22,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679574201] [2020-10-20 06:29:22,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817567440] [2020-10-20 06:29:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:22,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:29:22,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-20 06:29:22,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:29:22,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2020-10-20 06:29:22,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887785056] [2020-10-20 06:29:22,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:29:22,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:22,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:29:22,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:29:22,565 INFO L87 Difference]: Start difference. First operand 361 states and 453 transitions. Second operand 4 states. [2020-10-20 06:29:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:22,708 INFO L93 Difference]: Finished difference Result 960 states and 1198 transitions. [2020-10-20 06:29:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:29:22,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2020-10-20 06:29:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:22,711 INFO L225 Difference]: With dead ends: 960 [2020-10-20 06:29:22,711 INFO L226 Difference]: Without dead ends: 616 [2020-10-20 06:29:22,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:29:22,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-10-20 06:29:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 496. [2020-10-20 06:29:22,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-10-20 06:29:22,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 623 transitions. [2020-10-20 06:29:22,728 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 623 transitions. Word has length 68 [2020-10-20 06:29:22,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:22,728 INFO L481 AbstractCegarLoop]: Abstraction has 496 states and 623 transitions. [2020-10-20 06:29:22,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:29:22,728 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 623 transitions. [2020-10-20 06:29:22,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-20 06:29:22,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:22,729 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:22,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:22,943 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:22,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:22,944 INFO L82 PathProgramCache]: Analyzing trace with hash 579694859, now seen corresponding path program 1 times [2020-10-20 06:29:22,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:22,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186748001] [2020-10-20 06:29:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 06:29:23,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186748001] [2020-10-20 06:29:23,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:23,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:29:23,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645456908] [2020-10-20 06:29:23,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:29:23,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:23,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:29:23,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:23,080 INFO L87 Difference]: Start difference. First operand 496 states and 623 transitions. Second operand 6 states. [2020-10-20 06:29:23,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:23,430 INFO L93 Difference]: Finished difference Result 1194 states and 1490 transitions. [2020-10-20 06:29:23,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:29:23,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-20 06:29:23,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:23,434 INFO L225 Difference]: With dead ends: 1194 [2020-10-20 06:29:23,434 INFO L226 Difference]: Without dead ends: 717 [2020-10-20 06:29:23,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:29:23,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-20 06:29:23,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 603. [2020-10-20 06:29:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-20 06:29:23,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 756 transitions. [2020-10-20 06:29:23,460 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 756 transitions. Word has length 68 [2020-10-20 06:29:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:23,461 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 756 transitions. [2020-10-20 06:29:23,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:29:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 756 transitions. [2020-10-20 06:29:23,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-20 06:29:23,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:23,468 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:23,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 06:29:23,468 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:23,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:23,468 INFO L82 PathProgramCache]: Analyzing trace with hash 415029660, now seen corresponding path program 1 times [2020-10-20 06:29:23,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:23,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079956019] [2020-10-20 06:29:23,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-20 06:29:23,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079956019] [2020-10-20 06:29:23,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:23,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:29:23,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858886521] [2020-10-20 06:29:23,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:29:23,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:23,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:29:23,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:23,585 INFO L87 Difference]: Start difference. First operand 603 states and 756 transitions. Second operand 7 states. [2020-10-20 06:29:24,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:24,090 INFO L93 Difference]: Finished difference Result 1482 states and 1841 transitions. [2020-10-20 06:29:24,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:29:24,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-20 06:29:24,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:24,096 INFO L225 Difference]: With dead ends: 1482 [2020-10-20 06:29:24,096 INFO L226 Difference]: Without dead ends: 825 [2020-10-20 06:29:24,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:29:24,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2020-10-20 06:29:24,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 717. [2020-10-20 06:29:24,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-10-20 06:29:24,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 900 transitions. [2020-10-20 06:29:24,132 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 900 transitions. Word has length 74 [2020-10-20 06:29:24,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:24,132 INFO L481 AbstractCegarLoop]: Abstraction has 717 states and 900 transitions. [2020-10-20 06:29:24,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:29:24,133 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 900 transitions. [2020-10-20 06:29:24,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-20 06:29:24,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:24,134 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:24,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 06:29:24,135 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:24,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:24,135 INFO L82 PathProgramCache]: Analyzing trace with hash -78732058, now seen corresponding path program 1 times [2020-10-20 06:29:24,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:24,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358492308] [2020-10-20 06:29:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-20 06:29:24,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358492308] [2020-10-20 06:29:24,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761653402] [2020-10-20 06:29:24,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:24,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:29:24,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-20 06:29:24,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:29:24,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-20 06:29:24,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864442832] [2020-10-20 06:29:24,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:29:24,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:24,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:29:24,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:29:24,255 INFO L87 Difference]: Start difference. First operand 717 states and 900 transitions. Second operand 5 states. [2020-10-20 06:29:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:24,434 INFO L93 Difference]: Finished difference Result 2016 states and 2436 transitions. [2020-10-20 06:29:24,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:29:24,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-10-20 06:29:24,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:24,443 INFO L225 Difference]: With dead ends: 2016 [2020-10-20 06:29:24,443 INFO L226 Difference]: Without dead ends: 1991 [2020-10-20 06:29:24,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:24,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-10-20 06:29:24,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 993. [2020-10-20 06:29:24,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2020-10-20 06:29:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1352 transitions. [2020-10-20 06:29:24,486 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1352 transitions. Word has length 74 [2020-10-20 06:29:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:24,487 INFO L481 AbstractCegarLoop]: Abstraction has 993 states and 1352 transitions. [2020-10-20 06:29:24,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:29:24,487 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1352 transitions. [2020-10-20 06:29:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-20 06:29:24,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:24,489 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:24,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-20 06:29:24,701 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:24,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:24,702 INFO L82 PathProgramCache]: Analyzing trace with hash -2110504499, now seen corresponding path program 1 times [2020-10-20 06:29:24,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:24,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086825334] [2020-10-20 06:29:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-20 06:29:24,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086825334] [2020-10-20 06:29:24,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:24,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:29:24,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841400674] [2020-10-20 06:29:24,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:29:24,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:24,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:29:24,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:24,794 INFO L87 Difference]: Start difference. First operand 993 states and 1352 transitions. Second operand 7 states. [2020-10-20 06:29:25,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:25,265 INFO L93 Difference]: Finished difference Result 2272 states and 3078 transitions. [2020-10-20 06:29:25,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:29:25,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-20 06:29:25,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:25,272 INFO L225 Difference]: With dead ends: 2272 [2020-10-20 06:29:25,272 INFO L226 Difference]: Without dead ends: 1264 [2020-10-20 06:29:25,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:29:25,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2020-10-20 06:29:25,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1141. [2020-10-20 06:29:25,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-20 06:29:25,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-20 06:29:25,316 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 74 [2020-10-20 06:29:25,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:25,317 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-20 06:29:25,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:29:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-20 06:29:25,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-20 06:29:25,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:25,319 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:25,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 06:29:25,320 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:25,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:25,320 INFO L82 PathProgramCache]: Analyzing trace with hash 220871532, now seen corresponding path program 1 times [2020-10-20 06:29:25,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:25,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398853751] [2020-10-20 06:29:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-20 06:29:25,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398853751] [2020-10-20 06:29:25,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:25,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:29:25,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831875832] [2020-10-20 06:29:25,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:29:25,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:25,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:29:25,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:29:25,412 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-10-20 06:29:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:25,776 INFO L93 Difference]: Finished difference Result 3568 states and 4858 transitions. [2020-10-20 06:29:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:29:25,777 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-20 06:29:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:25,795 INFO L225 Difference]: With dead ends: 3568 [2020-10-20 06:29:25,795 INFO L226 Difference]: Without dead ends: 3401 [2020-10-20 06:29:25,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:25,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2020-10-20 06:29:25,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 1141. [2020-10-20 06:29:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-20 06:29:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-20 06:29:25,879 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-10-20 06:29:25,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:25,879 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-20 06:29:25,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:29:25,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-20 06:29:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-20 06:29:25,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:25,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:25,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-20 06:29:25,881 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:25,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:25,882 INFO L82 PathProgramCache]: Analyzing trace with hash 25170625, now seen corresponding path program 1 times [2020-10-20 06:29:25,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:25,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391310243] [2020-10-20 06:29:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-20 06:29:26,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391310243] [2020-10-20 06:29:26,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:26,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:29:26,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286972515] [2020-10-20 06:29:26,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:29:26,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:26,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:29:26,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:29:26,028 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 5 states. [2020-10-20 06:29:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:26,434 INFO L93 Difference]: Finished difference Result 3558 states and 4844 transitions. [2020-10-20 06:29:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:29:26,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-20 06:29:26,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:26,449 INFO L225 Difference]: With dead ends: 3558 [2020-10-20 06:29:26,449 INFO L226 Difference]: Without dead ends: 3384 [2020-10-20 06:29:26,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:26,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-10-20 06:29:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 1141. [2020-10-20 06:29:26,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-20 06:29:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-20 06:29:26,517 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 80 [2020-10-20 06:29:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:26,517 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-20 06:29:26,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:29:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-20 06:29:26,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-20 06:29:26,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:26,519 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:26,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-20 06:29:26,520 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:26,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:26,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1618881827, now seen corresponding path program 1 times [2020-10-20 06:29:26,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:26,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330281846] [2020-10-20 06:29:26,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-20 06:29:26,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330281846] [2020-10-20 06:29:26,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:26,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:29:26,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360032352] [2020-10-20 06:29:26,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:29:26,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:26,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:29:26,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:26,674 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-10-20 06:29:27,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:27,304 INFO L93 Difference]: Finished difference Result 4706 states and 6408 transitions. [2020-10-20 06:29:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:29:27,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-10-20 06:29:27,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:27,324 INFO L225 Difference]: With dead ends: 4706 [2020-10-20 06:29:27,324 INFO L226 Difference]: Without dead ends: 4539 [2020-10-20 06:29:27,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:29:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2020-10-20 06:29:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 1141. [2020-10-20 06:29:27,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-20 06:29:27,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-20 06:29:27,411 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-10-20 06:29:27,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:27,412 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-20 06:29:27,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:29:27,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-20 06:29:27,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-20 06:29:27,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:27,414 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:27,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-20 06:29:27,415 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:27,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:27,416 INFO L82 PathProgramCache]: Analyzing trace with hash -705708941, now seen corresponding path program 1 times [2020-10-20 06:29:27,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:27,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488438860] [2020-10-20 06:29:27,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-20 06:29:27,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488438860] [2020-10-20 06:29:27,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:27,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:29:27,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820086213] [2020-10-20 06:29:27,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:29:27,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:27,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:29:27,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:29:27,554 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 6 states. [2020-10-20 06:29:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:28,161 INFO L93 Difference]: Finished difference Result 4686 states and 6381 transitions. [2020-10-20 06:29:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:29:28,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-10-20 06:29:28,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:28,181 INFO L225 Difference]: With dead ends: 4686 [2020-10-20 06:29:28,182 INFO L226 Difference]: Without dead ends: 4512 [2020-10-20 06:29:28,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:29:28,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2020-10-20 06:29:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 1141. [2020-10-20 06:29:28,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-10-20 06:29:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1558 transitions. [2020-10-20 06:29:28,258 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1558 transitions. Word has length 83 [2020-10-20 06:29:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:28,259 INFO L481 AbstractCegarLoop]: Abstraction has 1141 states and 1558 transitions. [2020-10-20 06:29:28,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:29:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1558 transitions. [2020-10-20 06:29:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-20 06:29:28,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:28,269 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:28,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-20 06:29:28,269 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:28,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1508814206, now seen corresponding path program 1 times [2020-10-20 06:29:28,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:28,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492788040] [2020-10-20 06:29:28,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-20 06:29:28,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492788040] [2020-10-20 06:29:28,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240356894] [2020-10-20 06:29:28,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:28,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:29:28,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-20 06:29:28,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:29:28,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-20 06:29:28,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730748882] [2020-10-20 06:29:28,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:29:28,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:28,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:29:28,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:29:28,553 INFO L87 Difference]: Start difference. First operand 1141 states and 1558 transitions. Second operand 8 states. [2020-10-20 06:29:28,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:28,874 INFO L93 Difference]: Finished difference Result 3168 states and 4362 transitions. [2020-10-20 06:29:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:29:28,875 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-20 06:29:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:28,883 INFO L225 Difference]: With dead ends: 3168 [2020-10-20 06:29:28,884 INFO L226 Difference]: Without dead ends: 2018 [2020-10-20 06:29:28,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:29:28,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2020-10-20 06:29:28,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1911. [2020-10-20 06:29:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1911 states. [2020-10-20 06:29:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2607 transitions. [2020-10-20 06:29:28,957 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2607 transitions. Word has length 83 [2020-10-20 06:29:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:28,958 INFO L481 AbstractCegarLoop]: Abstraction has 1911 states and 2607 transitions. [2020-10-20 06:29:28,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:29:28,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2607 transitions. [2020-10-20 06:29:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-20 06:29:28,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:28,961 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:29,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:29,177 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:29,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1670983295, now seen corresponding path program 1 times [2020-10-20 06:29:29,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:29,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108742815] [2020-10-20 06:29:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-20 06:29:29,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108742815] [2020-10-20 06:29:29,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:29,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:29:29,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395232907] [2020-10-20 06:29:29,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:29:29,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:29,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:29:29,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:29,308 INFO L87 Difference]: Start difference. First operand 1911 states and 2607 transitions. Second operand 7 states. [2020-10-20 06:29:30,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:30,345 INFO L93 Difference]: Finished difference Result 4413 states and 5986 transitions. [2020-10-20 06:29:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:29:30,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-20 06:29:30,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:30,391 INFO L225 Difference]: With dead ends: 4413 [2020-10-20 06:29:30,394 INFO L226 Difference]: Without dead ends: 4246 [2020-10-20 06:29:30,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:29:30,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2020-10-20 06:29:30,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 1893. [2020-10-20 06:29:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2020-10-20 06:29:30,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2584 transitions. [2020-10-20 06:29:30,526 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2584 transitions. Word has length 85 [2020-10-20 06:29:30,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:30,526 INFO L481 AbstractCegarLoop]: Abstraction has 1893 states and 2584 transitions. [2020-10-20 06:29:30,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:29:30,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2584 transitions. [2020-10-20 06:29:30,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-20 06:29:30,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:30,530 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:30,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-20 06:29:30,531 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:30,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:30,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1447135889, now seen corresponding path program 1 times [2020-10-20 06:29:30,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:30,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491132832] [2020-10-20 06:29:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-10-20 06:29:30,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491132832] [2020-10-20 06:29:30,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:29:30,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:29:30,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463185677] [2020-10-20 06:29:30,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:29:30,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:30,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:29:30,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:29:30,835 INFO L87 Difference]: Start difference. First operand 1893 states and 2584 transitions. Second operand 7 states. [2020-10-20 06:29:31,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:31,748 INFO L93 Difference]: Finished difference Result 6724 states and 9154 transitions. [2020-10-20 06:29:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:29:31,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-10-20 06:29:31,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:31,761 INFO L225 Difference]: With dead ends: 6724 [2020-10-20 06:29:31,761 INFO L226 Difference]: Without dead ends: 6400 [2020-10-20 06:29:31,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:29:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2020-10-20 06:29:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 1885. [2020-10-20 06:29:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-10-20 06:29:31,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2576 transitions. [2020-10-20 06:29:31,862 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2576 transitions. Word has length 85 [2020-10-20 06:29:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:31,862 INFO L481 AbstractCegarLoop]: Abstraction has 1885 states and 2576 transitions. [2020-10-20 06:29:31,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:29:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2576 transitions. [2020-10-20 06:29:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-20 06:29:31,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:31,865 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:31,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-20 06:29:31,866 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:31,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:31,866 INFO L82 PathProgramCache]: Analyzing trace with hash -566259362, now seen corresponding path program 1 times [2020-10-20 06:29:31,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:31,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395581911] [2020-10-20 06:29:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-20 06:29:32,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395581911] [2020-10-20 06:29:32,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117669952] [2020-10-20 06:29:32,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:32,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:29:32,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-20 06:29:32,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:29:32,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2020-10-20 06:29:32,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549823394] [2020-10-20 06:29:32,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:29:32,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:32,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:29:32,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:29:32,566 INFO L87 Difference]: Start difference. First operand 1885 states and 2576 transitions. Second operand 10 states. [2020-10-20 06:29:34,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:34,396 INFO L93 Difference]: Finished difference Result 5246 states and 7382 transitions. [2020-10-20 06:29:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:29:34,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-20 06:29:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:34,408 INFO L225 Difference]: With dead ends: 5246 [2020-10-20 06:29:34,408 INFO L226 Difference]: Without dead ends: 3390 [2020-10-20 06:29:34,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:29:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2020-10-20 06:29:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 2569. [2020-10-20 06:29:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2569 states. [2020-10-20 06:29:34,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 3488 transitions. [2020-10-20 06:29:34,544 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 3488 transitions. Word has length 86 [2020-10-20 06:29:34,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:34,544 INFO L481 AbstractCegarLoop]: Abstraction has 2569 states and 3488 transitions. [2020-10-20 06:29:34,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:29:34,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 3488 transitions. [2020-10-20 06:29:34,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-20 06:29:34,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:34,549 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:34,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:34,765 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:34,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:34,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1279960591, now seen corresponding path program 1 times [2020-10-20 06:29:34,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:34,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344086586] [2020-10-20 06:29:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:34,977 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-20 06:29:34,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344086586] [2020-10-20 06:29:34,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764081793] [2020-10-20 06:29:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:35,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:29:35,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-20 06:29:35,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:29:35,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2020-10-20 06:29:35,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832714699] [2020-10-20 06:29:35,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:29:35,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:35,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:29:35,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:29:35,215 INFO L87 Difference]: Start difference. First operand 2569 states and 3488 transitions. Second operand 6 states. [2020-10-20 06:29:35,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:35,625 INFO L93 Difference]: Finished difference Result 3367 states and 4548 transitions. [2020-10-20 06:29:35,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:29:35,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-10-20 06:29:35,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:35,633 INFO L225 Difference]: With dead ends: 3367 [2020-10-20 06:29:35,633 INFO L226 Difference]: Without dead ends: 3167 [2020-10-20 06:29:35,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:29:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2020-10-20 06:29:35,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3140. [2020-10-20 06:29:35,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3140 states. [2020-10-20 06:29:35,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4241 transitions. [2020-10-20 06:29:35,727 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4241 transitions. Word has length 86 [2020-10-20 06:29:35,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:35,727 INFO L481 AbstractCegarLoop]: Abstraction has 3140 states and 4241 transitions. [2020-10-20 06:29:35,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:29:35,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4241 transitions. [2020-10-20 06:29:35,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-20 06:29:35,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:35,730 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:35,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-20 06:29:35,946 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:35,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:35,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1246814763, now seen corresponding path program 1 times [2020-10-20 06:29:35,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:35,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504211808] [2020-10-20 06:29:35,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-20 06:29:36,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504211808] [2020-10-20 06:29:36,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692815024] [2020-10-20 06:29:36,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:36,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-20 06:29:36,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-20 06:29:39,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:29:39,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2020-10-20 06:29:39,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413725311] [2020-10-20 06:29:39,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:29:39,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:39,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:29:39,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=98, Unknown=1, NotChecked=0, Total=132 [2020-10-20 06:29:39,640 INFO L87 Difference]: Start difference. First operand 3140 states and 4241 transitions. Second operand 12 states. [2020-10-20 06:29:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:42,264 INFO L93 Difference]: Finished difference Result 6038 states and 8105 transitions. [2020-10-20 06:29:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:29:42,265 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-20 06:29:42,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:42,275 INFO L225 Difference]: With dead ends: 6038 [2020-10-20 06:29:42,275 INFO L226 Difference]: Without dead ends: 5497 [2020-10-20 06:29:42,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=84, Invalid=295, Unknown=1, NotChecked=0, Total=380 [2020-10-20 06:29:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-10-20 06:29:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 4100. [2020-10-20 06:29:42,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4100 states. [2020-10-20 06:29:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4100 states to 4100 states and 5518 transitions. [2020-10-20 06:29:42,412 INFO L78 Accepts]: Start accepts. Automaton has 4100 states and 5518 transitions. Word has length 89 [2020-10-20 06:29:42,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:42,412 INFO L481 AbstractCegarLoop]: Abstraction has 4100 states and 5518 transitions. [2020-10-20 06:29:42,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:29:42,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4100 states and 5518 transitions. [2020-10-20 06:29:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-20 06:29:42,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:42,417 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:42,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-10-20 06:29:42,632 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:42,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:42,632 INFO L82 PathProgramCache]: Analyzing trace with hash 435136947, now seen corresponding path program 1 times [2020-10-20 06:29:42,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:42,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330453981] [2020-10-20 06:29:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:42,762 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-20 06:29:42,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330453981] [2020-10-20 06:29:42,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451369944] [2020-10-20 06:29:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:42,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:29:42,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-20 06:29:42,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:29:42,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2020-10-20 06:29:42,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906954809] [2020-10-20 06:29:42,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:29:42,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:42,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:29:42,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:29:42,951 INFO L87 Difference]: Start difference. First operand 4100 states and 5518 transitions. Second operand 12 states. [2020-10-20 06:29:47,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:47,371 INFO L93 Difference]: Finished difference Result 17412 states and 21999 transitions. [2020-10-20 06:29:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-20 06:29:47,372 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-20 06:29:47,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:47,395 INFO L225 Difference]: With dead ends: 17412 [2020-10-20 06:29:47,395 INFO L226 Difference]: Without dead ends: 14178 [2020-10-20 06:29:47,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2020-10-20 06:29:47,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14178 states. [2020-10-20 06:29:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14178 to 5702. [2020-10-20 06:29:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5702 states. [2020-10-20 06:29:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 7690 transitions. [2020-10-20 06:29:47,646 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 7690 transitions. Word has length 89 [2020-10-20 06:29:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:47,647 INFO L481 AbstractCegarLoop]: Abstraction has 5702 states and 7690 transitions. [2020-10-20 06:29:47,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:29:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 7690 transitions. [2020-10-20 06:29:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-20 06:29:47,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:47,653 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:47,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-20 06:29:47,894 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:47,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1767062975, now seen corresponding path program 1 times [2020-10-20 06:29:47,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:47,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581075854] [2020-10-20 06:29:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-20 06:29:48,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581075854] [2020-10-20 06:29:48,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623549095] [2020-10-20 06:29:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:29:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:29:48,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-20 06:29:48,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:29:48,274 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-20 06:29:48,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:29:48,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2020-10-20 06:29:48,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847593828] [2020-10-20 06:29:48,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:29:48,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:29:48,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:29:48,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:29:48,279 INFO L87 Difference]: Start difference. First operand 5702 states and 7690 transitions. Second operand 7 states. [2020-10-20 06:29:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:29:48,652 INFO L93 Difference]: Finished difference Result 6725 states and 9036 transitions. [2020-10-20 06:29:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:29:48,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-20 06:29:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:29:48,664 INFO L225 Difference]: With dead ends: 6725 [2020-10-20 06:29:48,664 INFO L226 Difference]: Without dead ends: 6089 [2020-10-20 06:29:48,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:29:48,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2020-10-20 06:29:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5706. [2020-10-20 06:29:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5706 states. [2020-10-20 06:29:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 7694 transitions. [2020-10-20 06:29:48,896 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 7694 transitions. Word has length 89 [2020-10-20 06:29:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:29:48,897 INFO L481 AbstractCegarLoop]: Abstraction has 5706 states and 7694 transitions. [2020-10-20 06:29:48,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:29:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 7694 transitions. [2020-10-20 06:29:48,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-20 06:29:48,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:29:48,902 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:29:49,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-10-20 06:29:49,117 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:29:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:29:49,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1585272271, now seen corresponding path program 1 times [2020-10-20 06:29:49,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:29:49,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549748502] [2020-10-20 06:29:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:29:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:29:49,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:29:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:29:49,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:29:49,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:29:49,300 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:29:49,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-20 06:29:49,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:29:49 BoogieIcfgContainer [2020-10-20 06:29:49,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:29:49,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:29:49,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:29:49,426 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:29:49,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:29:17" (3/4) ... [2020-10-20 06:29:49,430 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:29:49,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:29:49,437 INFO L168 Benchmark]: Toolchain (without parser) took 33459.50 ms. Allocated memory was 36.2 MB in the beginning and 208.7 MB in the end (delta: 172.5 MB). Free memory was 16.8 MB in the beginning and 48.4 MB in the end (delta: -31.6 MB). Peak memory consumption was 140.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:49,437 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:29:49,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.75 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 15.8 MB in the beginning and 24.2 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:49,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.22 ms. Allocated memory is still 44.6 MB. Free memory was 24.2 MB in the beginning and 21.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:49,438 INFO L168 Benchmark]: Boogie Preprocessor took 32.07 ms. Allocated memory is still 44.6 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:49,439 INFO L168 Benchmark]: RCFGBuilder took 561.53 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 20.1 MB in the beginning and 22.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:49,439 INFO L168 Benchmark]: TraceAbstraction took 32278.80 ms. Allocated memory was 46.7 MB in the beginning and 208.7 MB in the end (delta: 162.0 MB). Free memory was 21.9 MB in the beginning and 48.4 MB in the end (delta: -26.4 MB). Peak memory consumption was 135.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:29:49,439 INFO L168 Benchmark]: Witness Printer took 5.05 ms. Allocated memory is still 208.7 MB. Free memory is still 48.4 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:29:49,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 517.75 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 15.8 MB in the beginning and 24.2 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 53.22 ms. Allocated memory is still 44.6 MB. Free memory was 24.2 MB in the beginning and 21.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 32.07 ms. Allocated memory is still 44.6 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 561.53 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 20.1 MB in the beginning and 22.5 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 32278.80 ms. Allocated memory was 46.7 MB in the beginning and 208.7 MB in the end (delta: 162.0 MB). Free memory was 21.9 MB in the beginning and 48.4 MB in the end (delta: -26.4 MB). Peak memory consumption was 135.6 MB. Max. memory is 14.3 GB. * Witness Printer took 5.05 ms. Allocated memory is still 208.7 MB. Free memory is still 48.4 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L116] unsigned int a, b, r; [L118] a = __VERIFIER_nondet_uint() [L119] b = __VERIFIER_nondet_uint() [L34] unsigned char a0, a1, a2, a3; [L35] unsigned char b0, b1, b2, b3; [L36] unsigned char r0, r1, r2, r3; [L37] unsigned short carry; [L38] unsigned short partial_sum; [L39] unsigned int r; [L40] unsigned char i; [L41] unsigned char na, nb; [L42] a0 = a [L43] a1 = a >> 8 [L44] a2 = a >> 16U [L45] a3 = a >> 24U [L46] b0 = b [L47] b1 = b >> 8U [L48] b2 = b >> 16U [L49] b3 = b >> 24U [L50] na = (unsigned char)4 [L51] COND TRUE a3 == (unsigned char)0 [L52] EXPR na - 1 [L52] na = na - 1 [L53] COND TRUE a2 == (unsigned char)0 [L54] EXPR na - 1 [L54] na = na - 1 [L55] COND TRUE a1 == (unsigned char)0 [L56] EXPR na - 1 [L56] na = na - 1 [L60] nb = (unsigned char)4 [L61] COND FALSE !(b3 == (unsigned char)0) [L70] carry = (unsigned short)0 [L71] i = (unsigned char)0 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND TRUE i == (unsigned char)0 [L76] EXPR partial_sum + a0 [L76] partial_sum = partial_sum + a0 [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND TRUE i == (unsigned char)0 [L82] EXPR partial_sum + b0 [L82] partial_sum = partial_sum + b0 [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND TRUE i == (unsigned char)0 [L91] r0 = (unsigned char)partial_sum [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND TRUE i == (unsigned char)1 [L83] EXPR partial_sum + b1 [L83] partial_sum = partial_sum + b1 [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND TRUE i == (unsigned char)1 [L92] r1 = (unsigned char)partial_sum [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND TRUE i == (unsigned char)2 [L84] EXPR partial_sum + b2 [L84] partial_sum = partial_sum + b2 [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)254) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND TRUE i == (unsigned char)2 [L93] r2 = (unsigned char)partial_sum [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND FALSE !(i < na) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND TRUE i == (unsigned char)3 [L85] EXPR partial_sum + b3 [L85] partial_sum = partial_sum + b3 [L87] COND FALSE !(partial_sum > ((unsigned char)254)) [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND TRUE i == (unsigned char)3 [L94] r3 = (unsigned char)partial_sum [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L99] COND FALSE !(i < (unsigned char)4) [L108] r1 << 8U [L108] r2 << 16U [L108] r3 << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 38 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.0s, OverallIterations: 29, TraceHistogramMax: 4, AutomataDifference: 18.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3833 SDtfs, 6706 SDslu, 10501 SDs, 0 SdLazy, 8612 SolverSat, 497 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1033 GetRequests, 784 SyntacticMatches, 33 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5706occurred in iteration=28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 28 MinimizatonAttempts, 31331 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 2625 NumberOfCodeBlocks, 2625 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 2495 ConstructedInterpolants, 36 QuantifiedInterpolants, 1048146 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1851 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 39 InterpolantComputations, 23 PerfectInterpolantSequences, 2276/2396 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...